// copy to vben-admin

const toString = Object.prototype.toString

export const is = (val : unknown, type : string) => {
	return toString.call(val) === `[object ${type}]`
}

export const isDef = <T = unknown>(val ?: T) : val is T => {
	return typeof val !== 'undefined'
}

export const isUnDef = <T = unknown>(val ?: T) : val is T => {
	return !isDef(val)
}

export const isObject = (val : any) : val is Record<any, any> => {
	return val !== null && is(val, 'Object')
}

export const isEmpty = <T = unknown>(val : T) : val is T => {
	if (isArray(val) || isString(val)) {
		return val.length === 0
	}

	if (val instanceof Map || val instanceof Set) {
		return val.size === 0
	}

	if (isObject(val)) {
		return Object.keys(val).length === 0
	}

	return false
}

export const isDate = (val : unknown) : val is Date => {
	return is(val, 'Date')
}

export const isNull = (val : unknown) : val is null => {
	return val === null
}

export const isNullAndUnDef = (val : unknown) : val is null | undefined => {
	return isUnDef(val) && isNull(val)
}

export const isNullOrUnDef = (val : unknown) : val is null | undefined => {
	return isUnDef(val) || isNull(val)
}

export const isNumber = (val : unknown) : val is number => {
	return is(val, 'Number')
}

export const isPromise = <T = any>(val : unknown) : val is Promise<T> => {
	return is(val, 'Promise') && isObject(val) && isFunction(val.then) && isFunction(val.catch)
}

export const isString = (val : unknown) : val is string => {
	return is(val, 'String')
}

export const isFunction = (val : unknown) : val is Function => {
	return typeof val === 'function'
}

export const isBoolean = (val : unknown) : val is boolean => {
	return is(val, 'Boolean')
}

export const isRegExp = (val : unknown) : val is RegExp => {
	return is(val, 'RegExp')
}

export const isArray = (val : any) : val is Array<any> => {
	return val && Array.isArray(val)
}

export const isWindow = (val : any) : val is Window => {
	return typeof window !== 'undefined' && is(val, 'Window')
}

export const isElement = (val : unknown) : val is Element => {
	return isObject(val) && !!val.tagName
}

export const isMap = (val : unknown) : val is Map<any, any> => {
	return is(val, 'Map')
}

export const isServer = typeof window === 'undefined'

export const isClient = !isServer

export const isUrl = (path : string) : boolean => {
	const reg =
		/(((^https?:(?:\/\/)?)(?:[-:&=\+\$,\w]+@)?[A-Za-z0-9.-]+(?::\d+)?|(?:www.|[-:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&%@.\w_]*)#?(?:[\w]*))?)$/
	return reg.test(path)
}

export const isDark = () : boolean => {
	return window.matchMedia('(prefers-color-scheme: dark)').matches
}

// 是否是图片链接
export const isImgPath = (path : string) : boolean => {
	return /(https?:\/\/|data:image\/).*?\.(png|jpg|jpeg|gif|svg|webp|ico)/gi.test(path)
}

export const isEmptyVal = (val : any) : boolean => {
	return val === '' || val === null || val === undefined
}